When two gay men share a chronic addiction to anal fornication. Habituation of anal sex will eventually scar one's anus, marking one as a permanent "Tunnel-buddy."
"Oi, faggot, I heard you were officially labeled as a Tunnel-buddy by Anderson Cooper."
An often reply or saying that you use to respond back to when your friend has been in a situation that you can't relate too.
Sokka: My first girlfriend turned into the moon
Zuko: that's rough, buddy
You put each other's @ in your bios
@mike is on my bio so that makes him my bio buddy
Favourite persons to dine with or eat with.
One of my main eating buddies has turned vegan so now I'm short on an eating buddy.
When someone says something "awesome" or something interesting you can say "yeah buddi" to add some effect to what they said
Mark: I just got a new puppy!!!"
David: "Yeah Buddi!!!"
Where a girl and lad are both single and shag so basically friends with benefits
"Hey u want be single buddies could really us u for my company rn"